Brainfood: Millet yields, Millet review, Taro genome, Salty sunflower, WorldVeg network, Phylorelatives, Bovine domestication, Diet quality, Nutrition metrics, Aztec diets, Complementary conservation, Post-2020, Climate change breeding

Biodiversity loss in experiments and in real life

A large body of research shows that biodiversity loss can reduce ecosystem functioning.

You don’t say. Several years ago we half-heartedly attempted to summarize the literature here a couple of times. We’ve sort of given up on that of late: there’s just too much of it. But there is a fundamental problem with this literature…

…much of the evidence for this relationship is drawn from biodiversity–ecosystem functioning experiments in which biodiversity loss is simulated by randomly assembling communities of varying species diversity, and ecosystem functions are measured.

Fear not, though, help is at hand. The two quotes above are from the abstract of a paper bearing the following title.

The results of biodiversity–ecosystem functioning experiments are realistic.

Phew.

Erasing Native fires

You might remember a couple of entries in a Brainfood from back in February.

I only vaguely did, but enough to ring a bell when I happened across a full-throated take-down of that first article a few days ago. The question is to what extent Indigenous Peoples used fire to manage landscapes before European colonization of what is now New England.

If the answer is “not much” — as that first paper suggests, but the second denies — then conservation interventions involving “chainsaws, cattle and sheep grazing, and hay production, rather than fire” might be justified. So it’s not just an argument about the past, but also about what’s best today. The recent rebuttal suggests that the methods used to arrive at that “not much” conclusion were deeply flawed, and resulted in what amounts to “erasure” of Indigenous knowledge and Indigenous Peoples.

Most problematically, they ignore Indigenous sources that describe modifications of the environment, including but not limited to burning, in and near Native settlements and agricultural fields and along the interlaced trails and travel corridors where people sustained economic relationships and kinship networks.

I imagine the fiery debate will continue.

Nibbles: Robin Graham RIP, Fred Bliss award, Seed production, Chile spuds, Indian goats, Ancient bread, Horner Bier, Cheap food, Vigna, Singing dog, Fungal diversity